This group will consist of university students aged 18 years and older who report currently smoking cigarettes on a regular basis. Their level of nicotine dependence will be assessed using the Fagerström Test for Nicotine Dependence (FTND). They will also complete the International Physical Activity Questionnaire-Short Form (IPAQ-SF) to evaluate their weekly physical activity levels.

This group will include university students aged 18 years and older who have never smoked or used tobacco products. Their physical activity levels will be assessed using the IPAQ-SF. FTND will not be applied as they have no smoking history.

Participants will complete two validated questionnaires:

The Fagerström Test for Nicotine Dependence (FTND) - to assess levels of nicotine dependence.

The International Physical Activity Questionnaire - Short Form (IPAQ-SF) - to quantify weekly physical activity levels (walking, moderate, vigorous).

Total weekly physical activity will be assessed using International Physical Activity Score- Short Form (IPAQ-SF) and expressed as MET-min/week. Categories will be created as inactive, minimally active, and very active.

The Fagerström Test for Nicotine Dependence (FTND) is a widely used, standardized, 6-item questionnaire designed to assess the intensity of physical addiction to nicotine. The test evaluates behaviors and patterns related to cigarette smoking, including time to first cigarette after waking, number of cigarettes smoked per day, and difficulty refraining from smoking in forbidden areas. Each item is scored, and the total score ranges from 0 to 10.

Score 0-3: Low dependence

Score 4-6: Moderate dependence

Score 7-10: High dependence

The FTND allows researchers and clinicians to categorize smokers according to their nicotine addiction level, which can be useful for tailoring interventions or for observational analysis of behavior and health outcomes.